Compressor.



Nm 693,434. Patented Feb. 18, i902.

F.vw. PARSONS. A f comPnEsson.' (Application led Har. 11,l 1901.)

WITNESSE: l y' mmm. 'a'

- Patented Fb. 4a, |902, F. .--PAnsoNscommission. (Appliction led VMm'. 11, 1901.)

2 Sheets.. Shleet -2.

(No Modem 'INVENTOR /f WITNEs'sEs :lv

HIS ATTORNEY TN: Noam: Pmns ca. Moro-limo., wunmarofl, n. c.

i UNITED STATES PATENT OFFICE.

FREDERICK NV. PARSONS, OF ELMIRA, NEW YORK, ASSIGNORSTO RAND DRILL COMPANY,

YORK.

AOF NEW YORK, N. Y., A CORPORATION` OF NEW COMPRESSOR.

SPECIFICATION raming part of Letters Patent No. 693,434, dated February (1s, i902.

Application led March 1l.I 1901. SerialNo. 50,589. (No model.)

Y To all whom, t may concernb Be it known that I, FREDERICK W, PAR- s0NS,a citizen of the United States of America,

andaresident of Elmira, in the'county of Ohe-V mung and State of New York,vhave invented certain new and useful Improvements in Cornpressors, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

My invention relates to compressors, and particularly to air or other fluid-compressors of theloelt-driven type; and it consists in the provision of a base having two standards u prising therefrom, said vstandards having bearings at their upper ends, and two vertical cylinders arranged one on the outsideof each of said standards, the' base, standards, and cylinders being all comprised in one integral casting; and my invention further consists in certain details of construction and combination of parts', as will hereinafter bemore fully set forth. y i

yThe objects of my invention are to simplify the construction of a compressor of this type,

to procure and maintain correct alinement between the two cylinders andbetween the cylinders and the shaft-bearings, to avoid the possibility of leaky joints in the cylinderjackets and in the passages between the cylinders, and to provide a structure which is inexpensive to manufacture and easy to assemble.

I will now proceed to describe-a compressor embodying myinvention and will then point out the novel features in the claim.

In the drawings, Figure 1 is a side elevation of a compressor embodying myinvention. Fig. 2 is a front elevation of the same. Fig. 3 is a central transverse sectional elevation of a casting including the base, standards, and cylinders of the compressor. Fig. 4 is a horizontal sectional view of the parts shown in Fig. 3, the plane of section being taken upon the line 4 -i of Fig. 3.

In the embodiment of my invention illustrated in the drawings the main supportingframe is shown as a single integral casting, which comprises a base a, two standards b uprising therefrom and having bearings c at their upper ends, and two vertical cylinders (l, arranged one on the outside of each of the 'the said standards.

said standards, By reason of this construction it is possible in the process of manufacture to bore both of the cylinders d, as well as to bore the shaft-bearings, all-at one chucking. The advantage of this is not only in the great saving of iime'and expense, but

alsoin that it assures correct alinement between tlie two cylinders and between the cylinders and the shaft-bearings. ltfurther renders it impossible for the parts to become disy arranged, andhencev for 1 he correct alinement to be destroyed. l

The cylinders d are jacketed,`as at e, and the said jacketsl are preferably formed as a portion of the same integral casting heretofore described.l which may conduct a cooling fluid, as water, into the said jackets, andl discharge-pipes g will convey the saine away, and thereby causea circulation of the cooling Huid in the desired and well-known manner. The said main casting-is provided with an inlet-port 7L and an outlet-port t'. Suitable pipes may connect with the said ports and convey the iiuid to be compressed toward the compressor and the compressed fluid as delivered away therefrom. Passages j, provided in ,the casting, lea-d 'from the inlet-port h to the ends of both of the cylinders, and passages 7o, also provided in the casting, lead from Athe ends of both of the cylinders to the outlet-port o'.

The provision of the cylinder-jackets asintegral with the casting including the cylinders and the provision of the said passages jj lo lc in the said casting obviates the possibilityof leakyjoints in the cylinder-jackets or inpipe or other connections, which would necessarily be employed were the inlet and discharge passages arranged otherwise than in the casting, as herein.

A drive-shaft Z is mounted in the bearings c of the standards b, and a belt liy-wheel fm is secured to the said shaft and arranged between the standards. Crank-disks n are arranged on opposite ends of the drive-shaft Z and are arranged on the outside of each of vided with an eccentric crank-pin o, the said pins being preferably arranged at points substantially diametrically opposite to each other with respect to the shaft upon which vtheir Inlet-pipes f are provided, Y

Each. crank-disk is prodisks are mounted. ,Suitable pistons p are provided, one in each cylinder, and the said pistons are connected to and operated by the said crank-pins by connecting-rods q.

The lower ends of the cylinders dare closed by suitable heads r, and suitable suction and check valves may be provided therein in a manner common and well known. It will be noticed, however, that by my construction and arrangement of parts I am enabled to :remove and replace the said heads by merely removing the holding-bolts thereof without disturbing any of the other parts of the cornpressor, and, by reason of the fact that the inlet and discharge passages are in the framecasting, without breaking any pipe joints or connections. In this manner ready access may be obtained to the valves contained in the cylinder-heads and to the lower end of the cylinders. To remove all the other parts, it is merely necessary to take olf the caps of the bearings c, and the shaft, crank-disks, connecting-rods, pistons, and fiy-Wheel may all be removed together.

It is obvious that modifications of the construction and combination of parts herein set forth may be resorted to `within the spirit and scope of my invention.

The combination in a compressor with a base, two standards uprising therefrom and having bearings at their upperends, and two vertical cylinders arranged one on the outside of each of the said standards, the said cylinders, standards, and base being in one integral casting, of a shaft mounted in the said standard-bearings, a fly-wheel secured upon the shaft and arranged between the said bearings, crank-pins carried by the shaft and arranged one on the outside of each of the said standards, pistons in the said cylinders, connecting-rods connecting the said crank-pins with the said pistons, and an inlet and outlet for the fluid acted upon in said cylinders.

FREDERICK W. PARSONS.

Witnesses:

MATHER W.'SHERWooD, ANNA L. ALLEN. 

